4260 美国PYREX短颈圆底玻璃烧瓶

美国PYREX短颈圆底玻璃烧瓶

这些1L的PYREX圆形底部沸腾的烧瓶有短的环颈，并带一个8号橡胶塞子。这些环颈沸腾的烧瓶精确地用工具来调整塞子。强化轮辋增加机械强度。这些烧瓶被用于要求严格的塞车和在常规的实验室清洗中清洗瓶子的应用。它们是由7740硼硅酸盐玻璃制造的。通过仔细地控制墙的厚度，以便在热膨胀和机械强度之间达到适当的平衡，以获得更大的冲击阻力。它们出色的化学耐久性会导致在zui艰苦的实验室条件下的无污染结果和长寿。PYREX沸腾瓶的正常工作温度为230C。
4260-250、4260-500、4260-1L、4260-2L、4260-3L、4260-5L、4260-12L

美国PYREX短颈圆底玻璃烧瓶

These 1L PYREX round bottom boiling flasks have short ring necks and take a No. 8 rubber stopper. These ring neck boiling flasks are precisely tooled for uniform stopper fit. The reinforced rim increases mechanical strength. These flasks are used in applications requiring rigid stoppering and as wash bottles in routine lab washing. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX boiling flasks is 230C.